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butalik [34]
1 year ago
7

10. When Raphael solved the system below by using the method of elimination, he changed the second equationto -8x – 2y = -2. Wha

t property justifies this manipulation?8x + 3y = 74x + y = 1
Mathematics
1 answer:
Alex17521 [72]1 year ago
5 0

\begin{gathered} 8x+3y=7\ldots eqn(1) \\ 4x+y=1\ldots.eqn(2) \end{gathered}

The property that justifies multiplying through eqn(2) by -2 is;

the rationalization to align the coefficients of x in both equations with a view to eliminating the terms in x.

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Find the radius of a circle with circumference of 45.84 meters. Use 3.14
alukav5142 [94]

Answer:

3.8 meters

Step-by-step explanation:

In order to find the circumference for a circle, we use the formula π(radius)²

The circumference give is 45.84 and the π given is 3.14

All we have to do is to just substitute them.

45.84 = 3.14(radius)²

45.84 / 3.14 = radius²

14.6 = radius²

radius = √14.6

radius = 3.82 ≅ 3.8

5 0
3 years ago
Read 2 more answers
The product of 2 and a number increased by 7 is -36
Sholpan [36]
"The product" means you're multiplying the two numbers.
"a number" refers to a variable.
"increased" means you're adding.

2x + 7 = -36
3 0
3 years ago
Ms. Williams wanted information about how well her students were
Arturiano [62]

Answer:

https://www.pittsfordschools.org/cms/lib/NY02205365/Centricity/Domain/683/ANSWER%20KEY%20TO%20ALL%20HOMEWORK.pdf

Step-by-step explanation:

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3 years ago
Draw a segment perpendicular to each given segment. Show your thinking by sketching triangles as needed.
Digiron [165]

Answer:

pls dont kill me for wacky lines. this shall just give you a basic idea. the important part is the 90° angle

7 0
3 years ago
HELPPPP What is the range of g
dimulka [17.4K]

The range is how long the graph extends vertically. So, the lowest value is -9 (since the graph extends down until -9) and the highest value is 9 (since the graph extends up until 9). The lowest value goes in the first box and the highest value goes in the second box. The range is:

-9 ≤ <em>g</em>(<em>t </em>) ≤9


3 0
2 years ago
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